PT-2026-50828

Name of the Vulnerable Software and Affected Versions Mitsubishi Electric MELSEC iQ-F Series FX5-EIP EtherNet/IP module versions 1.000 and prior Description An integer overflow or wraparound in the EtherNet/IP function allows a remote attacker to cause a denial-of-service DoS condition. By rapidl...

CVE-2026-8805: Integer Overflow or Wraparound

Integer Overflow or Wraparound vulnerability in the EtherNet/IP function of Mitsubishi Electric MELSEC iQ-F Series FX5-EIP EtherNet/IP module FX5-EIP versions 1.000 and prior allows a remote attacker to cause a denial-of-service DoS condition in the affected product by rapidly establishing a larg...

CVE-2026-0646 Rockwell Automation FLEX I/O Dual-port EtherNet/IP Adapters – Multiple Vulnerabilities

A denial-of-service security issue exists within the 1794-AENTR adapter due to improper memory handling of CIP protocol requests. This vulnerability can result in the adapter faulting and losing connection to its associated I/O modules, requiring a manual reset to recover...

CVE-2026-0646

The affected product is Rockwell Automation 1794-AENTR adapters (EtherNet/IP). The issue is a denial-of-service caused by improper memory handling of CIP protocol requests in the 1794-AENTR adapter, which can cause the device to fault and drop connections to its linked I/O modules, requiring a ma...

Rockwell Automation FLEX I/O EtherNet/IP Adapters

ADVISORY SUMMARY Successful exploitation of these vulnerabilities could allow an attacker to gain unauthorized access, account takeover, and cause loss of availability. 2. RECOMMENDED PRACTICES CISA recommends users take defensive measures to minimize the risk of exploitation of these...

CVE-2026-38719

OpENer v2.3-558-g1e99582 contains an out-of-bounds read vulnerability in the Common Packet Format CPF parser, specifically in CreateCommonPacketFormatStructure in source/src/enetencap/cpf.c. A crafted ENIP/CPF message can supply an attacker-controlled itemcount value that is not consistently...

CVE-2026-35225

An unauthenticated remote attacker is able to exhaust all available TCP connections in the CODESYS EtherNet/IP adapter stack, preventing legitimate clients from establishing new connections...

EUVD-2026-25222

An unauthenticated remote attacker is able to exhaust all available TCP connections in the CODESYS EtherNet/IP adapter stack, preventing legitimate clients from establishing new connections...

CVE-2026-35225

An unauthenticated remote attacker is able to exhaust all available TCP connections in the CODESYS EtherNet/IP adapter stack, preventing legitimate clients from establishing new connections...

CVE-2026-35225 Improper timeout handling in CODESYS EtherNetIP

An unauthenticated remote attacker is able to exhaust all available TCP connections in the CODESYS EtherNet/IP adapter stack, preventing legitimate clients from establishing new connections...

PT-2026-34663

An unauthenticated remote attacker is able to exhaust all available TCP connections in the CODESYS EtherNet/IP adapter stack, preventing legitimate clients from establishing new connections...

CVE-2026-35225: Improper Check for Unusual or Exceptional Conditions

An unauthenticated remote attacker is able to exhaust all available TCP connections in the CODESYS EtherNet/IP adapter stack, preventing legitimate clients from establishing new connections...

EUVD-2020-31212

Hirschmann HiOS devices versions prior to 08.1.00 and 07.1.01 contain a denial of service vulnerability in the EtherNet/IP stack where improper handling of packet length fields allows remote attackers to crash or hang the device. Attackers can send specially crafted UDP EtherNet/IP packets with a...

CVE-2020-37216

Hirschmann HiOS devices versions prior to 08.1.00 and 07.1.01 contain a denial of service vulnerability in the EtherNet/IP stack where improper handling of packet length fields allows remote attackers to crash or hang the device. Attackers can send specially crafted UDP EtherNet/IP packets with a...

CVE-2020-37216 Hirschmann HiOS EtherNet/IP Stack Denial of Service

Hirschmann HiOS devices versions prior to 08.1.00 and 07.1.01 contain a denial of service vulnerability in the EtherNet/IP stack where improper handling of packet length fields allows remote attackers to crash or hang the device. Attackers can send specially crafted UDP EtherNet/IP packets with a...

CVE-2020-37216

Hirschmann HiOS devices versions prior to 08.1.00 and 07.1.01 contain a denial of service vulnerability in the EtherNet/IP stack where improper handling of packet length fields allows remote attackers to crash or hang the device. Attackers can send specially crafted UDP EtherNet/IP packets with a...

Belden Hirschmann HiOS input validation error vulnerability

Belden Hirschmann HiOS is an industrial Ethernet switch operating system developed by the American company Belden. Versions of Belden Hirschmann HiOS prior to 08.1.00 and 07.1.01 contained a vulnerability related to input validation errors. This vulnerability stemmed from improper handling of the...

CVE-2020-37216: Improper Input Validation

Hirschmann HiOS devices versions prior to 08.1.00 and 07.1.01 contain a denial of service vulnerability in the EtherNet/IP stack where improper handling of packet length fields allows remote attackers to crash or hang the device. Attackers can send specially crafted UDP EtherNet/IP packets with a...

PT-2026-30209

Name of the Vulnerable Software and Affected Versions HiOS versions prior to 08.1.00 HiOS versions prior to 07.1.01 Description A denial of service issue exists in the EtherNet/IP stack due to improper handling of packet length fields. Remote attackers can cause the device to crash or hang by...

CVE-2026-1875

The CVE-2026-1875 entry concerns Mitsubishi Electric MELSEC iQ-F Series FX5-EIP EtherNet/IP Module (FX5-EIP). The vulnerability is an Improper Resource Shutdown or Release in the EtherNet/IP interface across all FX5‑EIP versions, enabling a remote attacker to cause denial of service by continuous...